If you have just started your watercolor journey and you are confused about what colors should you buy, I recommend starting with the split primary color palette. It’s better to buy only a few good quality paints than a bunch of poor quality paints. And these few paints could be six primary colors, which are a great starting point. Split primary color palette is composed of yellow, red and blue splited into warm and cool versions. With split primary colors you can mix more vibrant colors than with just a standard primary color palette. It allows you to mix almost all hues. It’s a good idea to start with these colors, play with them, see what you can get and add more colors to your palette with time. If you need a recommendation, I would go with the following colors. Winsor&Newton: Winsor Lemon PY175 (cool yellow), Winsor Yellow PY154 (warm yellow), Quinacridone Magenta PR122 (cool red), Scarlet Lake PR188 (warm red), Winsor Blue Green Shade PB15 (cool blue), Ultramarine Blue PB29 (warm blue). Daniel Smith: Lemon Yellow PY175 (cool yellow), Hansa Yellow Medium PY97 (warm yellow), Quinacridone Lilac PR122 (cool red) (not a perfect magenta, another option would be Quinacridone Rose PV19), Organic Vermilion PR188 (warm red), Phthalo Blue Green Shade PB15 (cool blue), Ultramarine Blue PB29 (warm blue).